Answer:
By the late 1830s, botanist Matthias Schleiden and zoologist Theodor Schwann were studying tissues and proposed the unified cell theory. The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells.
Explanation:
Hope this helps
pls answer this it's due today
Answer:
option b is the right one
In DNA G pairs with C creating a __________ bond *
no
single
double
triple
Answer:
Triple
Explanation:
Because when guanine pairs with cytodine they form 3 hydrogen bonds
Prokaryotes and Eukaryotes share which
of the following structures?
DNA, cytoplasm, ribosomes, cell membrane
DNA, cytoplasm, ribosomes, mitochondria
nucleus, cytoplasm, ribosomes, mitochondria
Answer:
Dna,cytoplasm,ribosomes,cell membrane
Explanation:
How do chemosynthetic organisms get energy?
Answer: Chemosynthetic bacteria, unlike plants, obtain their energy from the oxidation of inorganic molecules, rather than photosynthesis. ... Chemosynthetic bacteria are chemoautotrophs because they're able to use the energy stored in inorganic molecules and convert them in organic compounds.J
Explanation:
Answer: They get their energy from the oxidation of inorganic molecules.
what was the name of the first successfully cloned mammal?
Answer:
Dolly the sheep
Explanation:
I hope I could help :D
which of the following mutations is most likely to result in a heritable change?
A. ULTRAVIOLET LIGHT FROM THE SUN CAUSES A MUTATION AND A SKIN CELL.
B. RADIATION FROM X-RAYS CAUSES A MUTATION IN BRAIN CELL.
C. A CHEMICAL AND CIGARETTE SMOKE CAUSES A MUTATION IN A LUNG CELL.
D. A SUBSTITUTION IN DNA CODING CAUSES A MUTATION IN A SPERM CELL.
I THINK ITS D. BUT CAN SOMEONE HELP ME !!!!!
Answer:
yeah
Explanation:
it's obviously D . it's a heritable change because the mutation in the sperm cell is gonna cause a mutation in the zygote
A mutation in the sperm cell will most likely result in heritable change ton the attributes of organisms.
Mutations that happen in vegetative cells such as skin, lung, and brain cells cannot be passed on to future generations.
Heritable mutations are those changes to the DNA sequence of sex cells. Changes elicited by such mutations are passed to future generations because they are germline based.
Sperm cells are sex cells. Thus, changes that occur as a result of mutation to sperm cells are most likely heritable.
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Can anyone please help me
Answer:
because there is no essential conditions like water ,air,ect
What safety precautions must I take in a minerals investigation?
What is the disadvantage of plasmolysis to the terrestrial plants?
Answer:
technical of plants living on the land or on the ground,so floppy plant.
why was it impossible to know about bacteria 5,000
years ago
Answer:
Im assuming because microscopes hadnt been invented. Also the idea of communicable diseases wasnt around so people assumed it was things like god that caused illness
Answer:
A true understanding of the physiology of these bacteria and their roles in ecology, host health, and natural product production requires their cultivation in the laboratory. Recent advances in growing these species include coculture with other bacteria, recreating the environment in the laboratory, and combining these approaches with microcultivation technology to increase throughput and access rare species. These studies are unraveling the molecular mechanisms of unculturability and are identifying growth factors that promote the growth of previously unculturable organisms. This minireview summarizes the recent discoveries in this area and discusses the potential future of the field.
Explanation:
Which of the following molecules are needed for photosynthesis?
a
carbon dioxide and oxygen
b
water and carbon dioxide
c
glucose and oxygen
d
light and oxygen
Answer:
A is correct.
Explanation:
Answer:
b is correct
Explanation:
b water and co2
Which of the following describes the cause of Addison's disease?
Answer:
b. Low levels of secretions of the hormones produces by the adrenal cortex
Explanation: is correct
Postganglionic sympathetic axons are carried from the sympathetic trunk to all spinal nerves through ______.
Answer:
gray rami communicantes
Explanation:
Postganglionic sympathetic axons are carried from the sympathetic trunk to all spinal nerves through gray rami communicantes. The sympathetic nervous system is almost connected to all parts of the body.
What is the nervous system?The nervous system is made up of neurons that are connected to each other and send the message for action to different parts of the body. The whole nervous system of the body is divided into three parts: the central nervous system, the peripheral nervous system, and the autonomic nervous system.
The central nervous system is composed of the brain and spinal cord, while the autonomic nervous system is composed of the sympathetic and parasympathetic nervous systems. The peripheral nervous system includes the nerves of the brain and spinal cord that are derived from these two organs. The sympathetic nervous system activates the majority of the organs in times of danger, whereas the parasympathetic nervous system is associated with rest.
Hence, Postganglionic sympathetic axons are carried from the sympathetic trunk to all spinal nerves through gray rami communicantes.
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A dog who inherits an allele for
curly hair and an allele for straight
hair has curly hair because the
allele for-
E. curly hair is recessive.
F. curly hair is dominant.
G. straight hair is dominant.
H. curly hair is inherited from both
parents.
How did scientists bring back she Spanish Flu?
Answer:
By replacing the genes for either the 1918 virus’s surface protein
Explanation:
What is this diagram?
Answer:
This Diagram is of Plant cell and Animal cell...✌
Hope it helps u...
Which is the best hypothesis for the extinction of the dinosaurs at the end of the Cretaceous period?
A.
Mammals evolved and killed the dinosaurs.
B.
Humans destroyed all the dinosaurs.
C.
The climate changed and the dinosaurs could not adapt.
D.
The dinosaurs killed each other.
Answer:
extinction, the best-known being the non-avian dinosaurs. It also destroyed myriad other terrestrial organisms, ...
Explanation:
....
When planning an investigation, the _______ are the steps you take to complete an investigation.
Answer:
When planning an investigation, the scientific method are the steps you take to complete an investigation.
Explanation:
The body has a number of systems that protect against infection.
Which of the following correctly orders four of these systems from most to least foundational?
Choose 1 answer:
A. B cell lymphatic tissue, lymph node, lymphatic system
B. B cell, lymphatic tissue, lymphatic system, lymph node
C. lymphatic tissue, B cell, lymph node, lymphatic system
Th appropriate ordering of the body system from least to most foundation in which they protect the body against infection is as follows.
cell lymphatic tissue, lymph node, lymphatic system, option A is correct.
The body has levels of organisation that build on each other. Cells make up tissues, tissues make up organs, and organs make up organ systems. The function of an organ system depends on the integrated activity of its organs
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Oceanic crust is best described as _______.
a.
thin and young
b.
continuously replenished
c.
a majority of Earth’s crust
d.
all of the above
Answer:
d. all of the above
Explanation:
correct ed2022
Which of these structures are used to eliminate wastes in an earthworm?
A. Nephridia
B. Sperm ducts
C. Oviducts
Describe how the presence of lead in body cells could interfere with the
ability of enzymes to function. *
Answer:
Descreva como a presença de chumbo nas células do corpo pode interferir com o capacidade de funcionamento das enzimas. *
Explanation:
espero ter ajudado boa noite
Which of the following mutations would be the LEAST likely to have a harmful effect on an organism?
(Select all that apply.) The mismatch of a DNA base pair during duplication can result in a _____. recombination mutation change differentiation
Answer:
The answer is change and mutation!
Hope this helps!
Explanation:
Summarize how the overharvesting of a single species,such as baleen whales,can affect an entire ecosystem.
Answer:
Overharvesting can have a negative impact on an entire species because it can alter food web relationships. For example, if there are too many whales, many organisms may lose their food source and homes, or even worse, go extinct!Source:
https://brainly.com/question/11134378A true-breeding tall pea plant is crossed with a true-breeding short pea plant, and all the offspring are tall. What is the most likely genotype of the offspring assuming a single-gene trait?
Answer:
(Tall: T, short: t)
Either Tt or TT
Explanation:
A tall plant with a short plant has a 100% probability of an offspring being tall.
what does it mean for a bacteria or protist to be photosynthetic?
Photosynthetic protists such as the various types of algae contain plastids. These organelles serve as the site of photosynthesis (the process of harvesting sunlight to produce nutrients in the form of carbohydrates). The plastids of some protists are similar to those of plants.
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In general, did the simulated mice align with your predictions from the Punnett squares?.
Research studies are often carried out using mouse. From the study, the simulated mice was said to align with the predictions from the Punnett squares. So the answer is Yes.
The reason why some of the percentages did not exactly match your predicted results because the Mice don't have large litters, so the sample size was not large enough.
If the experiment is to be done again, I can improve upon experimental design by;
Increase the number of mice bred. Examine a different trait within mice. Examine a trait in another species. Test patterns for future generations.A lot of studies is been carried out on the Genetics of the mouse. The early development of inbred lines were studied. The mouse is known to be a good tool to identify the genetic basis of both normal and disease traits.
See full question below
In general, did the simulated mice align with your predictions from the Punnett squares?
(Choices: Yes, No)
Error Analysis: What might be the reason that some of your percentages didn't exactly match your predicted results?
Options are;
Gametes aren't responsible for inheritance. Mice don't have large litters, so the sample size was not large enough. The wrong type of mice were used.
If you did the experiment again, how could you improve upon the experimental design? Check all that apply.
Increase the number of mice bred. Examine a different trait within mice. Examine a trait in another species. Test patterns for future generations
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Answer:
The answer is yes....
Explanation:
describe some of the adaptation of insects that allows them obtain their food from other organisms
Answer:
Parasitism
Explanation:
An example of this would be parasitism. It is a way in which some insects get food from other animals by living inside a host. It is a relationship in which the other animal is damaged while the parasite (in this case the insect) benefits.
In a controlled environment,
can be used to slow the decay process in foods.
A. gamma rays
B. infrared radiation
C. microwaves
D. x-rays
Given what we know, we can confirm that both gamma rays and x-rays can be used to slow the decay process in foods.
What are gamma rays and x-rays?Both of these are forms of ionizing radiation. Applying these to food is known as food irradiation. What this accomplishes, is that the food that is irradiated will have its chemical bonds altered, slowing the decay process.Therefore, since both gamma rays and x-rays offer ionizing radiation to the food, which affects the chemical bonds and allows the food to have a longer shelf life, we can confirm that they can be used to slow the decay process in foods.
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